ROBOROCK power board for Qrevo S robot vacuum, 9.01.3178

ROBOROCK 9.01.3178 — power board for Qrevo S robot vacuum; weighs 0.2 kg. The power board distributes battery voltage to the motors, the pump and the electronics, and handles charging on the dock. A failing one usually shows as a robot that will not charge while sitting on the base, or cuts out under load even with a healthy battery. It is a repair part: work on it with the service manual to hand and the battery disconnected.